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Kasrlarni yechish

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 а)	
1 1	
1 3 =	
3 4	

	
4 13	
=	
3 4 13
31
1
б) 3 1
1 =
4 3 
3 4
=
4 3
1 11
1 1
в)	
	
2 5	
1 =	
11 6	
	
	
2 11	
=	
11 6
1 11
3
г)	
	
5 9	
5 =	
7 20	
	
	
40 9	
=	
7 20
12	
1
3	
1	
= 4	
3
18
7
4	
= 2	
7	
H	
i	
s	
o	
b	
l	
a	
n	
g	
  H	
i	
s	
o	
b	
l	
a	
n	
g	
 а)	
	
1 1	
2 2 =	
6 4	

	
13 9	
=	
6 4	
39
8 3
2
б)
1 2
2 1 =
7 5 
15 7
=
7 5
1 13
1 3
в)	
	
5 7	
3 4 =	
9 8 
32 39
=
9 8
3 134
1
г)
1 8
1 =
12 11	

	
13 8	
=	
12 11
3 2	
52
3 7
= 4
8
26
33	
1	
= 17	
3 №  453
Amallarni bajaring     	
2 1 3 1 4 1	
1 1 1 =	
3 2 4 3 5 4	
    	
2 3 3 4 4 5	
=	
3 2 4 3 5 4
1	
	
3	
575 =	
5	
	3 575	
=	
5
115
1
345 ( m)Teshav oy  uy idan mak t abgacha 575 qadam 
sanadi. Uning har bir qadami mak t abga 3/5 
met r y aqinlasht irsa, mak t ab v a uy igacha 
bo’lgan masofani t oping 3
5 94
31
13Shu t o’g’rimi? Birga t eng bo’lgan k asrlar juft ligini birlasht iring 4
5 =
5Hisoblang 
4 5
=
5 4
7
9 =
9 7	
1	
9999 =	
9999
1	
	
3
4	
?	= 3
4	
7	
: 9 =	
9 7
=
9 9	
7	
81 Hisoblang 2 3	
: =	
5 4
30
=
6 5 
30 2
=
6 2 5	
 	(30 2) : (6 2) = 5	
   	
 	
   
   	
2 3	
4 : 4 =	
5 4	
	2 4	
:	
53 =	

	
2 4
5 3	
	
2 4	
= =	
5 3	
8
15 Tushib qolgan k asrni ay t ing b
а
:	
d
с =	
b
а	
d
с	
c
d .	??????
?????? 	
4 15	
=	
5 2
4 15
=
5 22
13
1 6	
	
2 14	
=	
7 3
2
1	
4	
=	
3	
1	
1	
3	
8
17	
3
4HamunaN amunadek  hisoblang

а) 1 1 1 3 = 3 4   4 13 = 3 4 13 31 1 б) 3 1 1 = 4 3  3 4 = 4 3 1 11 1 1 в)  2 5 1 = 11 6   2 11 = 11 6 1 11 3 г)  5 9 5 = 7 20   40 9 = 7 20 12 1 3 1 = 4 3 18 7 4 = 2 7 H i s o b l a n g

H i s o b l a n g а)  1 1 2 2 = 6 4   13 9 = 6 4 39 8 3 2 б) 1 2 2 1 = 7 5  15 7 = 7 5 1 13 1 3 в)  5 7 3 4 = 9 8  32 39 = 9 8 3 134 1 г) 1 8 1 = 12 11   13 8 = 12 11 3 2 52 3 7 = 4 8 26 33 1 = 17 3

№ 453 Amallarni bajaring      2 1 3 1 4 1 1 1 1 = 3 2 4 3 5 4      2 3 3 4 4 5 = 3 2 4 3 5 4 1  3 575 = 5  3 575 = 5 115 1 345 ( m)Teshav oy uy idan mak t abgacha 575 qadam sanadi. Uning har bir qadami mak t abga 3/5 met r y aqinlasht irsa, mak t ab v a uy igacha bo’lgan masofani t oping

3 5 94 31 13Shu t o’g’rimi?